I find it interesting that with ASD, there is (apparently, from this discussion), a tendency to be concise to the point of meaning being potentially lost but explains as quickly as possible, while with ADHD (which I have), there is a tendency to over-explain and be too verbose. With ADHD, we tend to worry that our thoughts aren't clear enough for others and go to great lengths to make sure our meaning is understood, which has its own problems (like people getting exhausted with us for our long windedness).